Pump for internal-combustion engines



July 29. 1924. 1,503.002

s. NAGY A PUMP FOR INTERNAL GOMBUSTION ENGINES Filed April ll. 1923 4mmm .v

Patented -luly 293, 1924.

STEPHEN NAGrY, 07F AlRVlIN('lON, NEW JERSEY, ASSIGNR 0F ONE-HALF T0NIKOLAAS `VIElEllVIANN', OF NEWARK, NEW JERSEY.

` Puliti? non m'rnnnan-coivrnusfrron ENGINES.

Application mea Aprii 11, 192e. serial 116,631,470.

To all 'whom t may concern:

Be it known that I, STEPHEN NAGY, a citizen of Hungary, anda residentof-rvingV ton, county of Essex, and State of New Jersey, have inventedcertain new and useful AImprovements in Pumps for Internal-CombustionEngines, of which the following is a specification.

' This invention relates to an improved pump and provides a pump thatcan be used for inilating tires and similar purposes and is mounted oninternal combustion engines directly in front of the engine and in rearof the'fan employed on such engines for cooling purposes. The inventionis designed to provide a pump, the casing of which is secured inposition on the engine, the pump casing in turn acting "as a support forthe fan and its pulley, and also supporting a clutch ,which is used forconnecting and disconnecting the mechanism of the kpump and the pulleyof the fan.

' ln this device the fan is used continuously, as usual, when the engineis running, and when the clutch is thrown out the pump is not in use,but when the pump is to be operated, all that is necessary to do Vis tothrow the clutch and the pump is connected with the pulley of the fanand is driven therefrom. 1

`This invention provides a pump of this kindwhich is insertable inengines asV now constructed, and` is so compact that the pulley of thefan is retained in its normal position, therefore requiring` noreadjustment of the driving pulley. c

The invention is illustrated in the accompanying drawings, in whichFigure 1 is an elevation of part of an engine, showing the pump and its'associated parts in section, and Figure 2 is a cross-section taken onthe line 2 2 in Figure 1.

I illustrate the device as being particularly adapted for use on a Fordengine, the engine being shown at 10, and the usual supporting bracket11 being illustrated at the front of the engine casing, and between theengine and the radiator 12 is mounted the fan 13, this fan being alwaysplaced directly in rear of the radiator. The pump casing is made so asto lit between the fan and the engine casing, the pump casing beingshown at 13, and while in different makes of engines it is adapted to befastened in any desired way, I show alug 14 which is fastenedby meansofthe bolt 15 to the bracket 11; The pump casing at its upper portion isprovided with a cylinder 16 in which is the piston 17 which, whenreciprocated. compresses air in the top of the cylinder, the air beingforced out through the outlet check valve 18 on the upward stroke ofthepiston, and drawing air into the cylinder through the inlet valve 19,the valve 19 also being a check valve.

A suitable hose. connection 20 is used `to secure the eXible pipe orhose 21, which y at its other end, of course, has a suitable fixture forits attachment to a tire valve or other similar element. The piston isoperated by av piston rod 22 which is connected to the kcrank shaft 23.c y y Y The pump casing is provided with a bear-` ing 211 which can beprovided with a suitable lining 25 for the iXed clutch member 26. Thedelinition"lixed relative to the clutch member means a clutch memberthat normalyly does not rotate when the clutch is disconnected, andwhich is not movablelongitudinally. This fixed clutch member 26 `isconnected with the crank shaft 23, and `I show the connection 27, whichis Ya screw-threaded connection, as one means of connecting these parts.The clutch member 26 supports the sliding clutch member 28 which can beslid back and forth by suitable means, such as the shifting lever 29,pivoted at 30 to the pump casing and having the forked end 31 pf theusual type to slide the clutch memwer.

The clutch lever 29 may be provided with a handle 32, the handle beingheld in its operative and inoperative positions by a pin 33 which can beslid through openings 34. in the plate 35, the cooling ribs 36 being cutaway, as at 37, to permit the inward.

Vinto which the fiange of the clutch member`26' projects and which alsoreceives the fingers 46 of the sliding clutch) member 28.

The fingers 46 slide between the lugs 47 on the clutch member 26","andare also 'adapted to slide in the space 48 arranged atl the inner end ofthe chamber 44 between the abutments 49,

AIt WilLthus beY evident4 that the fingers 46, when. thrust forward,willgserve as a connection andl insure the rotation of the fixed clutchmember withthe fan pulley, and on the other hand, when slid back fromthe openingsf48, will leave they fan pulley free torotate withoutyadecting any parts of the pump mechanisn.

The bearing 50 forthe other end of the crank shaft23 is preferably madeto form part of the pumpcasing and is easilylremoved, in the form shownthis being done by taking out the fastening screws 5l.y It will be notedfrom the drawing that the bearingSO is of a diameter large enough topermit the, longitudinalv withdrawal of the crank shaft, through the'`opening 52 in the pump" casing, this being desirable in case of repairand alsoto permitA lubricant being f placed' inthebottom of the pumpcasing,

this ,bottomI part at` 5 3 forming a crank case which is yadaptedto beusedas an ordinary crank' case for the retentoirof lubricant whichlubricates the piston rod and the cran'l'r, shaft.' through the ducts54.y c

'It willbeevident that modifications can be made yin the proportion ofthe parts, and diere'nt' securing devices and attaching meansjcan beusedfor securing the pump casing Vto'` the engine or similar support,without departing from the scope of theL invention. i

All' that.V it is necessaryto do when the device is to be used is tothrow the clutch lever "29 so as. to move the sliding clutch member 28forward, and the pump is then operated directly from the fan p ulley.

It will also be noted that this compact structure is possible by reasonof the pump casing'V acting as a support not only for its fan, theseassociated parts kbeing thus easily arranged in the space now availablein an automobile, as no other supportingr brackets or fixtures arenecessary.l

l claim:

l, A pump having its casing provided with a bearinp forv supporting afan Shaft, a fantpulley, aclutch for engaging the pulley with the shaft,all of said associated parts being supported by the pump casing,

2. A pumpcomprising apump` casing secured in lixedpositiom a fan pulley,acrank shaft in the pump, and a clutch` for connect-y ing anddisconnecting the` pulley and the crank shaft, the pulley, the clutch`and= the shaft all beingsupported solelybyI the pump casing.

3. A pump comprising a pump casing having a lug for attaching itto anengine, a piston inthe casing, a` crank shaft inthe casing, a bearingsupporting one' end of the crank shaft, a, fixed 'clutch member in thebearing, a jackshaft supportedby the A clutch member, a fan pulleysupported on the jack shaft and freely rotatable'thereon, a sliding,clutch member onthey fixedr member; and havingv coacting means withthe,y fixed member and the pulley to connectand connect them. i y

4. A pump comprising.` a pump casing having a: lugk forfattaching ityto. an engine, a piston inthe casing, va crank vshaftthe casing, abearingsupporting onefenfd offtlie crankshaft, a fixed clutch memberyinf the bearing, a ack shaft supportedr the vclutch member, a fanypulley supported on the jack shaft' and freely. rotatable thereon, anda sliding clutch member on thefixed member and having'v coactingfmeansAwith the. fixed member and the pulley to connect,andrdis. connectthem,a bearingfor the other endnf the ,crank` shaftr said vlast mentionedbearing being removable and of a diameter tol'permit the longitudinalwithdrawalV of,4 the crank shaft. i

n testimony that I claim theVV foregoing, l have hereto set myhand,'thi`sl7th day. of April, 1923. i i

STEPHEN Nasr.

